TPS781 150mA, LDO Reg, Ultralow-Power, Iq 1uA w/ Pin-Selectable, Dual-Level Output Volt | TI.com

TPS781 (ACTIVE) 150mA, LDO Reg, Ultralow-Power, Iq 1uA w/ Pin-Selectable, Dual-Level Output Volt

 

Recommended alternative parts

  • TPS7A05  -  TPS7A05 is a 200mA Low Iq LDO with fast transient response available in ultra-small size package.

Description

The TPS781 family of low-dropout (LDO) regulators offer the benefits of ultralow power (IQ = 1µA), miniaturized packaging (2×2 SON-6), and selectable dual-level output voltage levels. An adjustable version is also available, but does not have the capability to shift voltage levels.

The VSET pin allows the end user to switch between two voltage levels on-the-fly through a microprocessor-compatible input. This LDO is designed specifically for battery-powered applications where dual-level voltages are needed. With ultralow IQ (1µA), microprocessors, memory cards, and smoke detectors are ideal applications for this device.

The ultralow-power and selectable dual-level output voltages allow designers to customize power consumption for specific applications. Designers can now shift to a lower voltage level in a battery-powered design when the microprocessor is in sleep mode, further reducing overall system power consumption. The two voltage levels are preset at the factory through a unique architecture using an EPROM. The EPROM technique allows for numerous output voltage options between VSET low (1.5V to 4.2V) and VSET high (2.0V to 3.0V) in the fixed output version only. See the table in this data sheet or consult with your local factory representative for exact voltage options and ordering information; minimum order quantities may apply.

The TPS781 series are designed to be compatible with the TI MSP430 and other similar products. The enable pin is compatible with standard CMOS logic. This LDO is stable with any output capacitor greater than 1.0µF. Therefore, implementations of this device require minimal board space because of miniaturized packaging and a potentially small output capacitor. The TPS781 series IQ (1µA) also come with thermal shutdown and current limit to protect the device during fault conditions. All packages have an operating temperature range of TJ = -40°C to +125°C. For high-performance applications requiring a dual-level voltage option, consider the TPS780 series, with an IQ of 500nA and dynamic voltage scaling.

Features

  • Low IQ: 1µA
  • 150mA, Low-Dropout Regulator with Pin-Selectable Dual Voltage Level Output
  • Low Dropout: 200mV at 150mA
  • 3% Accuracy Over Load/Line/Temperature
  • Available in Dual-Level, Fixed Output Voltages from 1.5V to 4.2V Using Innovative Factory EPROMProgramming
  • Available in an Adjustable Version from 1.22V to 5.25V or a Dual-Level Output Version
  • VSET Pin Toggles Output Voltage Between Two Factory-Programmed Voltage Levels
  • Stable with a 1.0µF Ceramic Capacitor
  • Thermal Shutdown and Overcurrent Protection
  • CMOS Logic Level-Compatible Enable Pin
  • Available in DDC (TSOT23-5) or DRV (2mm × 2mm SON-6) Package Options
  • APPLICATIONS
    • TI MSP430 Attach Applications
    • Power Rails with Programming Mode
    • Dual Voltage Levels for Power-Saving Mode
    • Wireless Handsets, Smartphones, PDAs, MP3 Players, and Other Battery-Operated Handheld Products

All other trademarks are the property of their respective owners

WEBENCH® Designer TPS781

  Min   Max Range
Vin  V 2.2 to 5.5V
Product Option
Vout  V
Iout  A ≤ 0.15A
Ambient Temp  °C -40.0 to 125.0°C

Parametrics

Compare all products in Linear regulators (LDO) Email Download to Excel
Part number Order Output options Iout (Max) (A) Vin (Max) (V) Vin (Min) (V) Vout (Max) (V) Vout (Min) (V) Fixed output options (V) Package Group Features Regulated outputs (#) Operating temperature range (C) Thermal resistance θJA (°C/W) Noise (uVrms) Approx. price (US$) Rating PSRR @ 100 KHz (dB) Accuracy (%) Dropout voltage (Vdo) (Typ) (mV) Iq (Typ) (mA) Package size: mm2:W x L (PKG)
TPS781 Order now Adjustable Output
Fixed Output    
0.15     5.5     2.2     5.25     1.2     2
2.2
2.5
3.3    
SOT-23-THIN | 5
WSON | 6    
Enable     1     -40 to 125     65     86     0.34 | 1ku     Catalog     13     3     200     0.0005     5SOT-23-THIN: 8 mm2: 2.8 x 2.9 (SOT-23-THIN | 5)
See datasheet (WSON)    
TPS780 Order now Adjustable Output
Fixed Output    
0.15     5.5     2.2     5.25     1.2     1.8
2
2.3
2.5
2.7
3
3.3    
SOT-23-THIN | 5
WSON | 6    
Enable
Output Discharge    
1     -40 to 125     66     86     0.35 | 1ku     Catalog     13     3     200     0.0005     5SOT-23-THIN: 8 mm2: 2.8 x 2.9 (SOT-23-THIN | 5)
See datasheet (WSON)    
TPS782 Order now Fixed Output     0.15     5.5     2.2     3.6     1.8     1.8
2.2
2.3
2.5
2.7
2.8
3
3.3
3.6    
SOT-23-THIN | 5
WSON | 6    
Enable
Output Discharge    
1     -40 to 125     66     86     0.25 | 1ku     Catalog     13     3     130     0.0005     5SOT-23-THIN: 8 mm2: 2.8 x 2.9 (SOT-23-THIN | 5)
See datasheet (WSON)    
TPS783 Order now Fixed Output     0.15     5.5     2.2     4.2     1.8     1.8
1.9
2.6
3
4.2    
SOT-23-THIN | 5     Enable     1     -40 to 105     193     86     0.28 | 1ku     Catalog     13     3     130     0.0005     5SOT-23-THIN: 8 mm2: 2.8 x 2.9 (SOT-23-THIN | 5)